Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Mikolaj D. Uryszek"'
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043265 (2020)
We consider the fermionic quantum criticality of anisotropic nodal point semimetals in d=d_{L}+d_{Q} spatial dimensions that disperse linearly in d_{L} dimensions, and quadratically in the remaining d_{Q} dimensions. When subject to strong interactio
Externí odkaz:
https://doaj.org/article/8e882db188f24a41b7983ee088caad47
Publikováno v:
Physical Review B. 107
We investigate the stability of the N\'eel quantum critical point of two-dimensional quantum antiferromagnets, described by a non-linear $\sigma$ model (NL$\sigma$M), in the presence of a Kondo coupling to $N_f$ flavours of two-component Dirac fermio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::731de8db593768908494811fcffc97f6
https://doi.org/10.1103/physrevb.107.085113
https://doi.org/10.1103/physrevb.107.085113
Publikováno v:
Physical Review Research. 2
The authors use a soft cutoff renormalization-group approach to study quantum phase transitions of anisotropic nodal point semimetals in the large N limit and physically relevant spatial dimensions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3afb6adcb7950ed95672be0134d7904
https://doi.org/10.1103/physrevresearch.2.043265
https://doi.org/10.1103/physrevresearch.2.043265
Publikováno v:
Physical Review B. 100
Two-dimensional semi-Dirac fermions are quasiparticles that disperse linearly in one direction and quadratically in the other. We investigate instabilities of semi-Dirac fermions towards charge, spin-density wave and superconducting orders, driven by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd78cbbeeb05aefc3c4124fe278a8350
https://doi.org/10.1103/physrevb.100.155101
https://doi.org/10.1103/physrevb.100.155101